Roper iPoll

04 April 2023

The Roper Center for Public Opinion Research, located at Cornell University, is the world’s leading archive of public opinion survey data. Founded in 1947, the Roper Center holds data ranging from the 1930s, when survey research was in its infancy, to the present. The archive collection now includes hundreds of thousands of questions and tens of thousands of individual-level datasets, with hundreds more added each year.